Hi my screen has stopped working, all I get is the jaguar symbol blinking on and off intermittently and now have no radio, no proximity sensors, no reversing camera and no USB power, I tried to remove the disc in the boot and when I press the eject button nothing happens, maybe no power to that as well? BTW the car is a 2011 XF-S
Thinking maybe a battery disconnect and leave for twenty minutes and reconnect? I dont know how I should do this and concerned that I may lose more electrics, can anyone help?
Many thanks in advance